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RTC after power down

signum
Associate
Posted on August 23, 2010 at 22:01

RTC after power down

1 REPLY 1
Posted on May 17, 2011 at 14:04

How are you powering down? The RTC should maintain across a ''STANDBY'' operation, provided you identify PWR_FLAG_SB state in your RTC configuration code, and don't stomp on the RTC by reinitializing it when the STM32 comes back up from this state.

Use PWR_EnterSTANDBYMode(); to get the STM32 into it's minimal power state.

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